Precision Machining for Pneumatic Systems & Hydraulic Fittings Manufacturers
When pneumatic systems fail, production lines stall. That’s why manufacturers of air-powered tools, factory automation equipment, and hydraulic fittings rely on Buell Automatics for components that hold up under pressure—literally. Since 1966, we’ve been precision machining and manufacturing the small but essential parts that keep compressed air systems running at their best.
Why Pneumatic & Hydraulic Fitting Manufacturers Need Better Components for Precision Machining and Manufacturing
Compressed air systems operate under unique stresses:
- Repeated pressure cycling (0-150 PSI typically)
- Metal-on-metal wear in valves and cylinders
- Moisture that causes corrosion
- Vibration from reciprocating motion
We precision machine and manufacture parts to address these challenges, whether for OEM pneumatic tool manufacturers or hydraulic fitting manufacturers requiring leak-proof connections.

Main Parts We Produce
Our Swiss screw machines and CNC lathes regularly produce:
For Pneumatic Systems:
- Air valve bodies and spools
- Cylinder rods and end caps
- Fittings with NPT, BSPP, or ORB threads
- Actuator shafts and bushings
For Hydraulic Fittings Manufacturers:
- JIC flare fittings (37° and 45°)
- ORB (O-ring boss) adapters
- SAE straight thread ports
- Compression fittings for high-pressure lines
Material Science Matters in Fluid Power
We select metals based on their real-world performance:
Material | Best For | Why it works |
---|---|---|
12L 14 Steel | Pneumatic Fittings | Machines cleanly, good strength |
303 Stainless | Hydraulic Adapters | Corrosion resistance, durable threads |
6061 Aluminum | Valve Bodies | Lightweight, good thermal properties |
Brass C36000 | Air Line Connectors | Machinable, corrosion resistant |
Hydraulic fitting manufacturers know that even microscopic imperfections can cause leaks. Our processes prevent this:
- Controlled Thread Cutting – Using ground thread tools for perfect form
- Surface Finishing – Achieving Ra <32 µin on sealing surfaces
- Dimensional Checks – Verifying every critical diameter stays within ±0.0005″

Industry Needs
We regularly machine parts compliant with:
- SAE J514 (hydraulic tube fittings)
- ISO 1179 (compressed air connections)
- ANSI B1.20.1 (pipe thread standards)
Our ISO 9001:2015 QMS system documents every step—from material certification to final inspection—so hydraulic fittings manufacturers can trust the components they receive.
A Partner for Prototyping & Production
Whether you’re developing a new pneumatic tool, redesigning a hydraulic manifold or needing replacement parts for legacy equipment we can help with:
- Small test batches (as few as 25 pieces)
- Production runs (50,000+ units annually)
- Reverse engineering discontinued parts
Let’s Talk About Your Project
Call (800) 435-0330 today and ask how we’ve helped other hydraulic fitting manufacturers solve their toughest challenges through precision machining and manufacturing.